Reviving extinct DNA

It's a long way from bringing back extinct animals, but this is still pretty cool: See web-only content:
http://www.theatlantic.com/business/archive/2008/05/reviving-extinct-dna/3484/

This article available online at:

http://www.theatlantic.com/business/archive/2008/05/reviving-extinct-dna/3484/